[Ace-users] Re: [ace-bugs] ACE_Thread_Timer_Queue_Adapter large interval

Johnny Willemsen jwillemsen at remedy.nl
Tue Jul 10 07:24:06 CDT 2007


Hi,
 
Thanks for using the PRF form. Can you maybe make a small test program as
reproducer, or even better extend a test under ACE_wrappers/tests to
reproduce this?

Regards,
 
Johnny Willemsen
Remedy IT
Postbus 101
2650 AC  Berkel en Rodenrijs
The Netherlands
www.theaceorb.nl / www.remedy.nl 

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________________________________

	From: ace-bugs-bounces at cse.wustl.edu
[mailto:ace-bugs-bounces at cse.wustl.edu] On Behalf Of Martin Lierschof
	Sent: Tuesday, July 10, 2007 3:35 AM
	To: ace-bugs at cs.wustl.edu
	Subject: [ace-bugs] ACE_Thread_Timer_Queue_Adapter large interval
	
	

	Hi,

	 

	ACE VERSION: 5.5.1 (primary)

	ACE VERSION: 5.5.8 (also tested)

	 

	HOST MACHINE and OPERATING SYSTEM:

	Windows2000, WindowsXp (winsock2)

	 

	TARGET MACHINE and OPERATING SYSTEM, if different from HOST:

	Windows2000 (sp4) , WindowsXp (sp2) both running on winsock2

	 

	COMPILER NAME AND VERSION (AND PATCHLEVEL):

	MS VC 7.1 (sp) / MS VC 8 (sp1) = tested on both

	 

	THE $ACE_ROOT/ace/config.h FILE:

	#define ACE_ENV_BKWD_COMPAT

	#include "ace/config-win32.h"

	 

	THE $ACE_ROOT/include/makeinclude/platform_macros.GNU FILE:

	None

	 

	CONTENTS OF
$ACE_ROOT/bin/MakeProjectCreator/config/default.features:

	Default

	 

	AREA/CLASS/EXAMPLE AFFECTED:

	ACE_Thread_Timer_Queue_Adapter

	 

	Templates:

	<ACE_Timer_Wheel>

	<ACE_Timer_Heap>

	<ACE_Timer_Hash>

	<ACE_Timer_List>

	 

	 

	DOES THE PROBLEM AFFECT:

	COMPILATION?

	No

	 

	LINKING?

	No

	 

	EXECUTION?

	No

	 

	DESCRIPTION:

	I measured some miscalculation in intervals while debugging with
large intervals. So what's the recommended max value for an Interval?

	I tested with all Templates, but there was no difference between
them, always the same result.

	 

	Class:              ACE_Thread_Timer_Queue_Adapter

	 

	Templates:        all:

	                        ACE_Timer_Wheel

	            ACE_Timer_Heap

	ACE_Timer_Hash

	ACE_Timer_List

	 

	Description:      Problems scheduling, intervals larger than ~ 7
days, definitive 10 days

	 

	Calculation:       scheduled interval = 3600s (1 hour) * 24 (1day) *
10 (10 days) = 864000s

	Start time:        30.06.2007 00:00:00

	 

	Debugged in Timer_Queue_Adapters.cpp line: 261

	 

	Excepted handle timeout:
10.07.2007 00:00:00

	Timeout calculated while in debug Timer_Queue_Adapter:
15.07.2007 00:00:00

	 

	I'll be pleased if there is a workaround / fix / other timer
adapter.

	My current workaround is scheduling just for one hour but this seems
more than a dirty hack for this problem.

	 

	Thanks in advance 

	 

	Martin Lierschof




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